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Why does pore coalescence in a glassy material cause an increase in porosity and negative densification?
Find the device W/L ratios and the value of the resistor that sets the value of IREF so that a nominally 80-µA output current is obtained.
What is the speed of a proton whose kinetic energy is 12.9 keV?
For the current-steering circuit of Figure, find IO in terms of IREF and device W/L ratios
Find the output resistance of the current source Q2: and the output resistance of the current sink Q5:
For each possible input-diode combination, give the values of the output currents and of the VSG that results.
Consider the basic BJT current mirror of Figure when Q1: andQ2: are matched and IREF =1 mA.
It is required to design the circuit to provide an output current IO = 1 mA at VO = 1 V. What values of IREF and R are needed?
Find the voltages at all nodes and the currents through all branches in the circuit of Figure
Using the ideas embodied in Figure, design a multiple-mirror circuit using power supplies of± 5 Vto create source currents of 0.2 mA,
Find the values of gm and ro at the bias point. If terminal Z is grounded, terminal X is connected to a signal source having a resistance
Figure(a) has gm = 10 mA/V and a large ro. Find the open-circuit voltage gain and the output resistance.
Using the topology of Figure, design an amplifier to operate between a 2-kO source and a 2-kO load with a gain vo/vsig of -40 V/V.
Explore the possibility of improvement by reducing the loading of the source by the amplifier input.
What base-to-collector open-circuit voltage gain does your design provide? If Rsig =RL =20 kO, what is the overall voltage gain?
Find the value of RE to establish a dc emitter current of about 0.5 mA.Find RC to establish a dc collector voltage of about +0.5 V.
Determine the dc collector current and dc collector voltage of each transistor.
Find the dc collector current and the dc voltage at the collector.Replacing the transistor by its T model, draw the small-signal equivalent circuit
Find the input resistance Rin and the voltage gain vo/vsig. Assume that the source provides a small signal vsig and that ß=100.
Figure, the BJT used is specified to have ß values in the range\ of 50 to 200 (a distressing situation for the circuit designer).
Find the dc emitter current. Assume ß=100. Neglecting ro, find Rin , the voltage gain vo/vsig, the current gain io/ii , and the output resistance Rout
Repeat (b) for the case when capacitor CB is open-circuited. Compare the results with those obtained in (b) to find the advantages of bootstrapping
If the circuit is fed with a source having a 100-kO resistance, find the transmission to the base of Q1:vb1/vsig.Find the overall voltage gain vo/vsig.
Upon cooling, at what temperature would the first solid appear?What is the first solid phase to appear, and what is its composition?